Question:I thoroughly enjoyed the tech article "When Good Cams Go Bad" (June '06), but I have a couple of questions: If you have an older car without a catalytic converter but don't have flat tappets, ...

Under normal circumstances, most modern engine oil and gasoline brands work fine on their own to keep your engine running smoothly. But there may be cases where even the best of them could use a ...

As someone who's driven classic cars daily for around 15 years, as well as working on and restoring such cars throughout my education, I take vintage automotive maintenance very seriously. Many of ...

Walk into any parts store and you'll see the rows of glossy bottles promising to stop engine wear, boost fuel economy, and make your old clunker run like it just rolled out of the factory. The auto ...

Marvel Mystery Oil, or MMO, — to the uninitiated, it may sound like a magical substance concocted from secret ingredients, and in some ways, that's exactly what it is. However, others may see it as ...

I've owned a lot of old cars in my time, so the occasional dark puddle or stain from a fluid leak on my driveway has been an all-too-common sight. My thought process is the same every time -– do I ...

A new metal-conditioning oil additive, GO-15 from Engineous USA, has shown to increase the fuel economy of trucks approximately 15 percent while boosting horsepower and reducing engine emissions.

Bar’s Leaks has introduced its Gear Repair treatment additive designed to extend differential/gear system life by stopping leaks, reducing noise and improving gear performance in automotive, heavy ...